US News A scientist captured an impossible photo of a single atom

01:15 14 february 2018

01:15 14 february 2018 Source:
Quartz

Checks at Irish border ‘unavoidable’ after Brexit, warns Barnier

The EU’s chief Brexit negotiator has given an update on the state of talks following the latest round of discussions in Brussels.Brussels’ chief Brexit negotiator also told reporters that agreement on a transitional deal after the UK leaves the bloc in March 2019 was “not a given”.

A student at the University of Oxford is being celebrated in the world of science photography for capturing a single , floating atom with an ordinary camera. Using long exposure, PhD candidate David Nadlinger took a photo of a glowing atom in an intricate web of laboratory machinery.

What does an atom sound like? Apparently it's a "D-note." That's according to scientists at Chalmers University of Technology in Göteborg, Sweden, who have revealed in a new study that they've captured the sound of a single atom .

A student at the University of Oxford is being celebrated in the world of science photography for capturing a single, floating atom with an ordinary camera.

Using long exposure, PhD candidate David Nadlinger took a a photo of a glowing atom in an intricate web of laboratory machinery. In it, the single strontium atom is illuminated by a laser while suspended in the air by two electrodes. For a sense of scale, those two electrodes on each side of the tiny dot are only two millimeters apart.

The image won first prize in a science photo contest conducted by UK based Engineering and Physical Sciences Research Council (EPSRC).

Astronomers have already captured images of Elon Musk's car in space

Elon Musk's Tesla Roadster has been in space less than a week but it continues to make waves in the astronomy community.&nbsp;The car which was launched onboard SpaceX's revolutionary rocket the Falcon Heavy, and features a mannequin driver dubbed "Starman". It was originally hoped that the car would travel to Mars, but it looks it will most likely drift off into deep space.

Culminating a five-years effort, the scientists have obtained a digital image of the shadow cast by a single atom , in a development The breakthrough pushes microscopy to its ultimate limit because, as Kielpinksi explained, it is impossible to see anything smaller than an atom using visible light.

A strontium atom is suspended in high vacuum and illuminated between two electrodes with a blue laser.

When illuminated by a laser of the right blue-violet colour, the atom absorbs and re-emits light particles sufficiently quickly for an ordinary camera to capture it in a long exposure photograph.

In the award’s announcement, Nadlinger is quoted on trying to render the microscopic visible through conventional photography. “The idea of being able to see a single atom with the naked eye had struck me as a wonderfully direct and visceral bridge between the miniscule quantum world and our macroscopic reality,” he said.

Other than using extension tubes, a lens accessory that increases the focal length of an existing lens and is typically reserved for extreme close-up photography, Nadlinger used normal gear that most photographers have access to. Even without a particularly complicated rig, his patience and attention to detail paid off.

“When I set off to the lab with camera and tripods one quiet Sunday afternoon,” he said, “I was rewarded with this particular picture of a small, pale blue dot.”

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